Home / 117,042.66-161,518.68-66,066.12

Finding the Fourth Proportional to 117,042.66, 161,518.68 and 66,066.12

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Solution

The fourth proportional to 117,042.66, 161,518.68 and 66,066.12 is: 91,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,042.66 : 161,518.68 = 66,066.12 : x
  2. Step 2: Convert to fraction form
    117,042.66/161,518.68 = 66,066.12/x
  3. Step 3: Cross multiply
    117,042.66x = 161,518.68 × 66,066.12
  4. Step 4: Simplify right side
    117,042.66x = 10,670,912,495.12
  5. Step 5: Solve for x
    x = 10,670,912,495.12/117,042.66
  6. Step 6: Final answer
    x = 91,171.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.